K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, 0.5 Fl Oz
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K18

K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, 0.5 Fl Oz

|3,917 ratings
K18 Leave-In Molecular Hair Mask, Repairs Dry or Damaged Hair, 0.5 Fl OzK18 Leave In Molecular Hair Mask Repairs Dry or Damaged Hair 0 5 Fl OzK18 Leave In Molecular Hair Mask Repairs Dry or Damaged Hair 1 7 Fl Oz
Size0.5 oz
Pack SizeSingle

Key item features

- Reconnects both hair polypeptide chains, offering comprehensive, lasting repair

- Works at the innermost layer of the hair, resulting in strong & smooth hair

- Delivers immediate and lasting results, plus ongoing reparative benefits

- Convenient, leave-in formula works in just 4 minutes, with no extra rinse needed

- Works on all hair types because our K18PEPTIDE™ works on a molecular level

Specs

Brand, K18Hair type, All Hair TypesActive ingredients, salicylic acidSize, 0.5 ozContainer type, BottleProduct line, Leave-In Molecular Repair Hair Mask

About this item

Product details

A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services and heat – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.

- Reconnects both hair polypeptide chains, offering comprehensive, lasting repair

- Works at the innermost layer of the hair, resulting in strong & smooth hair

- Delivers immediate and lasting results, plus ongoing reparative benefits

- Convenient, leave-in formula works in just 4 minutes, with no extra rinse needed

- Works on all hair types because our K18PEPTIDE™ works on a molecular level

info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Brand

K18

Hair type

All Hair Types

Active ingredients

salicylic acid

Size

0.5 oz

Directions

Instructions

IN the shower Shampoo, do not condition. OUT of the shower Towel dry thoroughly. Begin with 1 pump of the K18 Mask and add more as needed depending on the length, thickness, and condition. Work evenly into hair from ends to roots, one pump at a time. Let sit for 4 minutes to activate. Do NOT rinse out. Style as usual.

Fabric Care Instructions

made in china

Warranty

Warranty information

No Warranty

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Ingredients

Customer ratings & reviews

4.5 out of 5 stars
stars
3,917 ratings3,424 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars79% (3,105)
  2. 4 stars9% (354)
  3. 3 stars4% (172)
  4. 2 stars2% (94)
  5. 1 star5% (192)
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 3,424 reviews

May 13, 2026
Reviewer name: Andrea
Item details
Size: 1.7 oz
Sold bySL Trading Company LLCDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Effective and worth the price

I really debated if this was worth the cost. It is. I have always had course curly hair. After getting heavy bleach highlights it was really fried, so I decided to spend the money. My hair feels so much softer and is much easier to comb through and style. You use only a small amount each use (follow the directions!) so it lasts while still being very effective.

Helpful?40JS0OMFAC55831576982
Sep 19, 2026
Reviewer name: Bassam
Item details
Size: 1.7 oz
Sold bySL Trading Company LLCDelivered byWalmart
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Doctor's point of view!!

Great product

Helpful?40JS0OMFAC55831576982
Jun 9, 2026
Reviewer name: Walmart customer
Item details
Size: 0.5 oz
Sold and shipped byLighthouse Beauty
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

NOT A GOOD VALUE FOR THE MONEY

I have waist length hair and I paid $30 for a 3/4 of 1 time use. There was not enough in the bottle to properly condition my hair So I cannot say it was or wasn't effective I just know it is NOT a good value for the money and I will not be ordering this again - because a person with long thick hair should not need to pay $60 to fully condition my hair 1 time

Helpful?40JS0OMFAC55831576982
Current price is $37.56$2.50/ml
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31

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Sold and shipped by Beautyforall
4.280254777070064 out of 5 stars
4.3 stars out of 5, based on 157 seller reviews(4.3)
Extended holiday returns
Free Holiday returns until Jan 31